Home / 13,138.06-19,707.09-7,932.94

Finding the Fourth Proportional to 13,138.06, 19,707.09 and 7,932.94

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Solution

The fourth proportional to 13,138.06, 19,707.09 and 7,932.94 is: 11,899.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,138.06 : 19,707.09 = 7,932.94 : x
  2. Step 2: Convert to fraction form
    13,138.06/19,707.09 = 7,932.94/x
  3. Step 3: Cross multiply
    13,138.06x = 19,707.09 × 7,932.94
  4. Step 4: Simplify right side
    13,138.06x = 156,335,162.54
  5. Step 5: Solve for x
    x = 156,335,162.54/13,138.06
  6. Step 6: Final answer
    x = 11,899.41

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.